Many of us spend several hours a day at a computer screen. Furthermore, 75% of all 40-60 year olds have eye related symptoms with VDUs. Conventional progressive lenses are designed for general applications rather than prolonged computer work. As a result, vision at middle distances, such as computer work, is restricted to a small area on the lens. In order to see the whole screen, wearers find they need to turn their head to focus through the correct part of the lens. Occupational progressives also known as 'Computer' lenses are the perfect choice in an office environment. Occupational lenses have up to twice the area dedicated to middle distances. You'll therefore see the computer screen comfortably. Occupational lenses are recommended as an additional pair specifically for in-office use.